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H. C. KREIPKE.

ANTISKIDDING DEVICE.

APPLICATION FILED JUNE 17. 1919.

1,330,480. Patented Feb. 10, 1920.

2 I INVENTOR. go 5 ATTORNEYS HermmC/fre/Me UNIT Tar HEItltftAN G. Itifiifillil ltlllll, LOS ANGELES, CALIFORNIA.

nn rrsnrnnrne nnvron i Applioationfiled nae 17,

To aZZcohon e/it may concern:

Be it known that I, IIERMAN C. Kinnrku, a citizen of the United States, residing; at Los Angeles, in the countyot Los Angeles and State of California, have invented new .and useful Improvements in Antiskiddinn;

Fig. 1 upon anenlargedjscale and showing one anti-skidding; device, the view being taken looking. in the direction indicated by the arrow Qin Fig. 3.

Fig. 3.i s across section on the line 3-3, of Fig. 2 and looking in the direction indicated by the arrows.

Fig. t is a perspective view of the locking dog shown in Figs. 2 andB.

Fig. 5 is a cross sectional detail of the ground gripping member as on the line 5-5 ofFi,q.3.

' Fig. 6 is afragmentary plan upon a reduced scale of the ground gripping member as seen looking in thedirection indicated by the arrow 6 in Fig.3. H r

Fig. 7 is a view analogous to Fig. showing a modified construction.

Fig. 8 is a view analogous to Figs.

5 and 5 and 7 and showing asccond modification.

My anti-skidding; device consists of a lockinn dog 1, a rigid member 2 to which the locking dog is pivotally connected, side chains 3 and 1 connected to the ends of the rigid 1ne1nber2, and a ground gripping member connected to the other or outerv ends of the chains 3 and 1.

The details of the locking dog 1 are as follows: A piece of stift'strap iron is cut to the desired size and shape and bent to form the bearing 6, the return bend 7 extending from the bearing o, the supporting plate 8 extending from the opposite end of the re turn bond, 7 from the bearing; 6, and the ban dle portion 9- extending from the opposite end of the plate 8 from the return bend 7.

The details of the'rigid member 2 are as follows: A piece of strong rod is cut to the desired length and the piece is bent to "form the straight central portion 10 mounted in i Specification of Letters Patent. l atefltqgd E91 10, lngoj 1919. semi n0. scenes.

the bearing" 6, the arms 11 and 12 extend ing from the ends of the central portion 10, the eye 13 formed on the outer end of the arm 11 and hooked through the end link of the chain 3 and closed, and the hook 1 1 formed on the outer end of the arm 12 and removably hooked through the end link oi? the chain 4. The chains 3 and 4!: are substantially alike and each consists of about four links of an ordinary twist link chain.

The details of the ground gripping member 5 are as follows: A piece of hard rod is cut to the desired length and bent to torm the eye 15 hooked through the outer link of the chain 3 and closed, the return bend 16 extending from the eye 15, the return bend 17 extending from the return bend .16,

the return bends18, 20, 22 and 24: in line with the return bend 16, and the return bends 19, 21 and 23 in line with the return bend 17, the connections between the bends being parallel, and the bends extending in planes crosswise oi. the tread of the tire, and the eye 26 extending from the bend 9A and hooked through the outer link of the chain 1- and closed. The number of bends end to end so as to make a zigzag cutting edge which will cutinto the ground and hold the vehicle from skiddingforwardly or backwardly or sidewise. y

In Fig. 7 I have shown the member 5 made of circular material 28, and in Fig. 8'

I have shown the member 5 made of squarematerial 29 and various other forms may be used.

The anti-skidding'devices are made to fit a'wheel 30 upon which they are to be applied, and when an anti-skidding device is to be applied the chain 4- is disconnected from the hook 1 1. the handle 9 is. engaged to swing the locking dog 1 as shown in dotted lines in Fig. 2, and the bearinnr'fi is placed against the inner face of the telly 31 and'the members passed around the tire 32 and the inner link of the chain 4 applied to the hook 14, as shown in Fig. 3; then the handle 9 is manipulated and pressed toward. the telly thus causing the bearing 6 carrying the portion 10 of the member 2 over theretur'n bend 7, thereby tightening and holding the member 5 against the tread of the tire.

When the antiskidding devices are no longer needednpon the Wheel the handles '9 are manipulated and swung upwardly to member, and a ground gripping member connected to the outer ends of the side chains.

2. An anti-skidding device comprising a locking dog formed of strap iron bent to make a bearing, a return bend extending from the bearing, a supporting plate extending from the opposite end of the return bend from the bearing, a handle extending from the opposite end of the supporting plate from the return bend, a rigid member having a central portion extending through the bearing, side chains connected to the ends of the rigid member, and a ground gripping member connected to the outer ends of the side chains.

In testimony whereof I have signed my name to this specification.

HERMAN C. KR-EIPKE. 

